Punnett Square Review

Front

What is Co-Dominance in genetics?

Back

Co-Dominance is a type of inheritance where both alleles in a heterozygous genotype are fully expressed, resulting in a phenotype that shows both traits simultaneously.

Front

What is Incomplete Dominance?

Back

Incomplete Dominance is a genetic situation where one allele does not completely dominate another allele, resulting in a third phenotype that is a blending of the two traits.

Front

What does the genotype 'gg' represent in terms of plant color?

Back

The genotype 'gg' represents a yellow plant, as 'G' is the dominant allele for green color.

Front

What is the probability of getting white fur from a cross between a brown fur (Bb) and a white fur (bb) animal?

Back

The probability of getting white fur is 50%.

Front

In a heterozygous genotype, which allele determines the phenotype?

Back

The dominant allele determines the phenotype in a heterozygous genotype.

Front

What is the expected offspring ratio when crossing two roan cows (Rr)?

Back

The expected offspring ratio is 25% Red, 50% Roan, and 25% White.

Front

Define the term 'allele'.

Back

An allele is a variant form of a gene that can produce different traits.

Front

What does a Punnett Square illustrate?

Back

A Punnett Square illustrates the possible genetic combinations from a cross between two parents.

Front

What is the phenotype of a homozygous dominant genotype (e.g., GG)?

Back

The phenotype of a homozygous dominant genotype is the dominant trait.

Front

How do you determine the probability of a trait in offspring using a Punnett Square?

Back

You determine the probability by analyzing the ratio of the different genotypes produced in the square.